All axis only move in positive direction

Peregrine
Posts: 5
Joined: Fri Mar 27, 2015 7:29 pm

All axis only move in positive direction

Post by Peregrine » Fri Mar 27, 2015 7:51 pm

All axis will only move in the positive direction. This is true whether in manual setup or trying to run a program. When in setup, you can move the axis in any increment in a positive direction but then the position resets to 0 and it won't move back. When trying to run a program, I can see the positive G codes are working but the negative G code commands are being ignored. eventually, the axis gets to the end of travel and stalls. This is true of X, Y, and Z and probably the extruder but I can't see that one.

zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: All axis only move in positive direction

Post by zhangxueyou » Sat Mar 28, 2015 9:34 am

Please tell me your board type and your email address.

Peregrine
Posts: 5
Joined: Fri Mar 27, 2015 7:29 pm

Re: All axis only move in positive direction

Post by Peregrine » Sat Mar 28, 2015 9:17 pm

My board type is Saguinololu. I was able to make it work one time running a program in "dry run" but when I tried to run with the heats on, it went back to only moving positive. That was the one and only time it worked. Now it only moves positive again whether in setup, dry run, or full run. Other than that, everything seems to be working.

dale@peregrinecomputers.com

john
Posts: 104
Joined: Fri Nov 14, 2014 1:45 pm

Re: All axis only move in positive direction

Post by john » Tue Mar 31, 2015 11:28 am

dose it move only a little bit? If it's, pls press the endstop and move it again, i guess the endstop signal is missing or get a inverse level.

cazuroweste
Posts: 15
Joined: Tue Mar 31, 2015 9:41 am

Re: All axis only move in positive direction

Post by cazuroweste » Wed Apr 01, 2015 9:56 am

I have the same board. My z axis only moves positive, the other 2 work properly. The extruder is not working as well.

zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: All axis only move in positive direction

Post by zhangxueyou » Wed Apr 01, 2015 4:53 pm

cazuroweste wrote: I have the same board. My z axis only moves positive, the other 2 work properly. The extruder is not working as well.
Is the connection of z motors correct?
The extruder motor can not move unless the temperature is higher than 175 degrees.

cazuroweste
Posts: 15
Joined: Tue Mar 31, 2015 9:41 am

Re: All axis only move in positive direction

Post by cazuroweste » Wed Apr 01, 2015 7:32 pm

zhangxueyou wrote:
cazuroweste wrote: I have the same board. My z axis only moves positive, the other 2 work properly. The extruder is not working as well.
Is the connection of z motors correct?
The extruder motor can not move unless the temperature is higher than 175 degrees.
The z axis is connected correctly. Whether i press up or down, it will only go up. Also, it seems the threaded rods for the z axis are not straight, as it wants to bind up.

Peregrine
Posts: 5
Joined: Fri Mar 27, 2015 7:29 pm

Re: All axis only move in positive direction

Post by Peregrine » Wed Apr 01, 2015 7:35 pm

In my case, the axis' will move in whatever increment is chosen when in manual mode. It will move the entire length of travel if you tell it to but ONLY in a positive direction.
When I run a program in "dry run", it will do all the positive moves correctly until it runs out of travel, ignoring all the negative moves. I don't know about the extruder, I've been trying to get the main axis working first. The end stops are wired correctly but since the axis' must travel in a negative direction to activate them, it's hard to tell if they are working correctly. Is this a firmware issue?

zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: All axis only move in positive direction

Post by zhangxueyou » Thu Apr 02, 2015 10:26 am

cazuroweste wrote:
zhangxueyou wrote:
cazuroweste wrote:
I have the same board. My z axis only moves positive, the other 2 work properly. The extruder is not working as well.

Is the connection of z motors correct?
The extruder motor can not move unless the temperature is higher than 175 degrees.


The z axis is connected correctly. Whether i press up or down, it will only go up. Also, it seems the threaded rods for the z axis are not straight, as it wants to bind up.
1.Let the z axis up first. After it stops, let it down. See if it can go down.
2.You should make sure the theaded rods are well installed.

zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: All axis only move in positive direction

Post by zhangxueyou » Thu Apr 02, 2015 10:29 am

Peregrine wrote: In my case, the axis' will move in whatever increment is chosen when in manual mode. It will move the entire length of travel if you tell it to but ONLY in a positive direction.
When I run a program in "dry run", it will do all the positive moves correctly until it runs out of travel, ignoring all the negative moves. I don't know about the extruder, I've been trying to get the main axis working first. The end stops are wired correctly but since the axis' must travel in a negative direction to activate them, it's hard to tell if they are working correctly. Is this a firmware issue?
Peregrine
Please take a picture of you mainboard, and take a picture of front image of your priter.

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